if (type.isAssignableFrom(this.getClass())) {
            return (T) this;
        }
        throw new ClassCastException();
    }

    @Override
    public long getExpiration() {
        return this.expiration;
    }

    @Override
    public int getPathConsumed() {
        return this.pathConsumed;
    }

    /**
     * {@inheritDoc}
     *

        } catch (final IOException ex) {}
        return connection.getContentEncoding();
    }

    @Override
    public long getExpiration() {
        try {
            handshake();
        } catch (final IOException ex) {}
        return connection.getExpiration();
    }

    @Override
    public long getDate() {
        try {
            handshake();
        } catch (final IOException ex) {}

        public Exception getException() {
            return this.exception;
        }

        @Override
        public void setExpiration(Long expiration) {
            this.expiration = expiration;
        }

        @Override
        public Long getExpiration() {
            return this.expiration;
        }

        // Additional Response interface methods
        @Override

    @Override
    public String getContentEncoding() {
        handshake();
        return this.connection.getContentEncoding();
    }

    @Override
    public long getExpiration() {
        handshake();
        return this.connection.getExpiration();
    }

    @Override
    public long getDate() {
        handshake();
        return this.connection.getDate();
    }

    @Override

     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Response#getExpiration()
     */
    @Override
    public Long getExpiration() {
        return this.expiration;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.util.transport.Response#setExpiration(java.lang.Long)
     */
    @Override
    public void setExpiration(final Long exp) {
        this.expiration = exp;
    }

            final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
            states.entrySet()
                    .stream()
                    .filter(e -> (now - e.getValue().getExpiration()) / 1000L > getStateTtl())
                    .map(Map.Entry::getKey)
                    .collect(Collectors.toList())
                    .forEach(s -> {
                        if (logger.isDebugEnabled()) {

            Long expiration = 1000L;
            echoResponse.setExpiration(expiration);
            assertEquals(expiration, echoResponse.getExpiration());

            echoResponse.setExpiration(null);

            assertNull(echoResponse.getExpiration());
        }
    }

    @Nested
    @DisplayName("Signature Verification Tests")
    class SignatureVerificationTests {

        @Test

            Long expiration = 1000L;

            response.setExpiration(expiration);

            assertEquals(expiration, response.getExpiration());
        }

        @Test
        @DisplayName("Should handle null expiration")
        void testNullExpiration() {
            response.setExpiration(null);

            assertNull(response.getExpiration());
        }
    }

    @Nested

     * @return this session's UID
     */
    public int getUid() {
        return this.uid;
    }

    /**
     * @return this session's expiration time
     */
    public Long getExpiration() {
        return this.expiration > 0 ? this.expiration : null;
    }

    /**
     * @return this session's credentials
     */
    public CredentialsInternal getCredentials() {

        }

        @Test
        @DisplayName("Test expiration property")
        void testExpirationProperty() {
            assertNull(testBlock.getExpiration());
            testBlock.setExpiration(123456789L);
            assertEquals(123456789L, testBlock.getExpiration());
        }
    }

    @Nested
    @DisplayName("DFS Resolution Tests")
    class DFSResolutionTests {

        @BeforeEach